Lawn sweeper



April 13 1920. 1,580,600 J. H- HOLBROOK LAWN SV I'EEPER Filed Dec. 10, -1923 Patented Apr. 13, 1926.

"UNITED STATES-PATENT OFFICE; I

JOHN H. HOLBROOK, OF SULPHUR SPRINGS, TEXAS.

Lawn swEnrEn. 7

Application filed December 10, 1923. Serial No. 679,560.

7 '0 all whom it may concern: Be it known that 1, JOHN H. HoLBRooK,

citizen of the United States of America, re-

siding at Sulphur Springs, in the county of Hopkins and State of Texas, have invented certain-new and useful Improvements in Lawn Sweepers, of whichthe following isa specification.

This invention relates to new and useful improvements in lawn sweepers.

The object of the invention is to provlde a machine which maybe propelled over a grass lawn for the purpose of removing trash therefrom. v

A particular object of the invention is to provide a machine which will remove leaves, pieces of paper, match stems, bits of metal and all other trash which it may be desired to remove,

cleaner,

Another object is to provide a revolving sweeper member having bristles and fingers, whereby both a sweeping and raking action is had and articles too heavy or too smooth to be removed by the flexible bristles, will be carried into the machine by the fingers.

A further object is to provide means for effectively cleaning the sweeping member and removing therefrom adhering articles.

A construction designed to carry out the invention will be hereinafter described together' with other features of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein:

Fig. 1 is a side elevation of a machine constructed in accordance with my invention,

Fig. 2 is a plan view of the same,

Fig. 3 is a detail of the drivlng gear,

Fig. 4' is a sectional detail of the bristle Fig. 5 and Fig. 6 is a detail of the bristle clamp.

In the drawings the numeral-.10 designates a collecting trough .which :is preferably is aidetailof one of the journals formed of sheet metal upright sides 11.

Trunnions 12 are. suitably mounted at the front edges of the sides of the trough and engage in ground wheels 13, similar-to those used on-an ordinary lawn mower. On the inner side of each wheel, an internal gear 14 1s concentrically secured. Arevolvmg sweeping member 15 hasits shaft 16 suit-.

from which a ably journaled in the sides ll above the ber is revolved when the machine is moved forwardly. The yoke of a suitable handle 18- straddles the trough and engages the trunnions 12,'outside of the wheels.

The member 15 base. novel construction and comprises a central drum or arbor 19 plurality of blades 20 (Fig. 4) radiate. These blades extend longitudinally of the member between the sides 11, of the trough. A flat clamp bar 21 is secured to outer edge of each blade by bolts 22. .Bristles 23.0f fine wire, coarse hair or other suitable material, are held between the blades and the clamp bars. Also rigid fingers 24 of metal or wood or other material are also suitably held, by the bar-21 as is shown in Figs. 4 and 6. The rigid fingers or bristles are embedded in the bristles and have their outer ends terminating short of extend at an angle downwardly toward the sweeping member so that as the latter revolves, the fingers 24 are carried between the fingers 25 and the bristles 23 are carried through flexible bristles 26, also carried bythe head. Matter adhering to the member 15 is thus combed off so as to fall into the trough 10 and the sweeper member is kept 7 clean.

A dofier blade 28 is-secured to the front edge of the bottom of the trough, rearwardly of the center of thezmember 15, so that the gathered material may be readily swept intothe trough. A sack or other collecting receptacle 29 has a collar 30.fitting around the rear end of the trough; The sack is suitably provided with hooks 31-for engaging eyes 32 in the sides 11, whereby the sack is removably attached and may be removed when full.

In using the machine the operator grasps the handle and pushes the machine across the lawn. The wheels 13 impart rotation to the gears 14 which in turn revolve the pinions 17. The sweeper member 15 is thus revolved in a counter-clockwise direction. The flexible bristles 23 will readily sweep the leaves and lighter objects into the trough,

but would slide over newspapers, cards and heavy articles. However these latter will be engaged by the rigid fingers or bristles 2% and carried into the trough.

Various changes in the arrangement and structure of the different elements as Well as modifications and alterations, may be made within the scope of the appended claim.

What I claim, is:

In a lawn sweeper, a trough. ground 1 asaeoo of the blades and imbedded therein, said 20 sweeper being mounted so that the bristles and fingers will sweep matter into the trough, and a comb mounted in the trough having bristles and rigid fingers embedded in the bristles, said fingers being spaced so as that the fingers of the sweeper will pass therebetween.

In testimony whereof afiix my signature.

JQHN H. HOLBROOK. 

